You will need:
3 Tablespoons Baking Soda
8 ounces Hydrogen peroxide
1 drop dish soap
Mix together well and use right away. My mom discovered that if it is not mixed well the baking soda will clog the sprayer. You also can't store this apparently it doesn't last in the bottle and it is no longer effective due to the active nature of these ingredients. I didn't test that out I used all the mixture. (twice)
Here is my mattress before